(re-edited May, 2007)
Finally have finished my stereo conversion on a relatively low budget. I want to thank Steve T for the ideas and his freind Wes who has designed a fantastic speaker upgrade for the MKiV. I mostly appreciate Steve Ishii for helping hammer out the stock wiring plug-n-play system.
The Idea here is using all of the OEM wiring. Purchasing 3 sets of Toyota Harness adapters for about $50. 1) Integration Harness 2) 10-Pin Speaker harness 3) 6-Pin Speaker harness . I can show you what they look like and you can probably get them on Ebay. Or direcltly from Scosche (more expensive) http://www.scosche.com/what_fits.aspx ..Or...METRA
The difference between a stock OEM system w/o Amp, and the system w/Amp is the actual speaker harnesses that are behind the dash. These "ARE NOT" in any EWD from Toyota. Thanks to Steve Ishii for pointing this out. They do this so it is more plug and play at the factory when installing a system with an Amp. So they put these speaker connectors behind the front panel, just behind the Trac buttons. They just plug in the speakers (wires) into this junction harness that feeds directly to the Amp under the seat. These are called IH1, IH2 and IH3. We are not messing with the IH3 because that is the SubWoofer, and we are keeping that in tact, and using the OEM Amp under the seat to run the SubWoofer ONLY.
Here is the EWD showing the harnesses:
Here is an actual picture, with the completed harness. See the IH1, IH2, IH3 in the center right of the picture:
These Harness carry all of the speakers, front and rear. So all you have to do is buy the matchng harnesses, and then you can *snap* these together.
Here is the complete list of items needed, basic color codes, Pin #'s Note that you will need all harnesses in order to have automatic antenna functions.
Here is the picture of the completed wiring harness, including the Integration 15 Pin, the 10 Pin and the 6 Pin (IH1, IH2) Speaker Harnesses
Here is the actual wiring diagrams for the "do-it-yourself" Basically for any other type of head unit: This one is compliments of Steve Ishii. Note here that I have revised this wiring diagram to now show a installation of an Antenna switch. I was unhappy that the antenna would go up and stay up, even when playing the CD. This is NOT how the OEM radio works. If your playing a CD on the OEM radio, the antenna stays down. With this diagram, you can control the antenna whenever you want with the switch. You can see the switch on the last picture of the actual radio installed in the dash.
So this is the whole systems wiring. Total cost, $50 and some time.
_________________________________________________________________
Now for the actual Speaker upgrades. First is the speakers that Wes has built for me and for Steve Theodore. These speakers can handle full 100% volume with 0 distortion. Wes has retrofitted the OEM front door speaker boxes with these 4" Peerless 830516 CD Woofer W/ 20MM tm02j6 Audax tweeters W/ crossover.
The new rear speakers are rated as high. They are Audax VP160OGO. FYI, when I took out the rear OEM speakers, they were stamped "15W" which tells you the overall rating of the OEM system.
Front Speakers:
http://www.97supraturbo.com/Radio Conversion/New Door Speaker 3 (Large).jpg
REAR SPEAKER:
Now for the Head Unit that I just got.
I was lucky to get the brand new Nakamichi CD 500 HU. These are rated at 47W per channel into 4 ohms. Including a SW Out, which we are not using because we are using the OEM Amp to pump out all its got just for the SW. This new unit is MP3 compatible, and I have already made 1 CD with 150 songs on it. The Nakamichi also has 10 different color display settings to match any OEM car display colors. I am using Grn/Grn, and Amber/Grn for now.
Here are a couple of pics of the finished install:
Green Green:
Green Red:
So, that is my install. This system pumps plenty enough bass for me. Enough so the rear view mirror shakes, and I can feel it in my chest. I can crank it full up without any distorion.
Total cost depends on the Head Unit of course, and I cannot recommend what you would decide on. I picked this Unit because it was a single DIN, so I could install new guages, its MP3 capabilities, and its Illumination schemes.
But I paid around $275 for about everything except the head unit.
Also forgot to mention that you will want a single DIN Box to cover the lower section if you switch to a single DIN radio. I bought one at CarToys for $30 to find later they are $10 on Ebay:
Or call Elmhurst (Curt) He has them as well.
Part# 55521-16030 pocket 1 din plastic list $5.33
I glued a flat peice of plastic over the box opening so I could have a flat area to velcro on new guages
Hope this is of some use for for anyone thinking of a *mid* use style of upgrade.
Finally have finished my stereo conversion on a relatively low budget. I want to thank Steve T for the ideas and his freind Wes who has designed a fantastic speaker upgrade for the MKiV. I mostly appreciate Steve Ishii for helping hammer out the stock wiring plug-n-play system.
The Idea here is using all of the OEM wiring. Purchasing 3 sets of Toyota Harness adapters for about $50. 1) Integration Harness 2) 10-Pin Speaker harness 3) 6-Pin Speaker harness . I can show you what they look like and you can probably get them on Ebay. Or direcltly from Scosche (more expensive) http://www.scosche.com/what_fits.aspx ..Or...METRA
The difference between a stock OEM system w/o Amp, and the system w/Amp is the actual speaker harnesses that are behind the dash. These "ARE NOT" in any EWD from Toyota. Thanks to Steve Ishii for pointing this out. They do this so it is more plug and play at the factory when installing a system with an Amp. So they put these speaker connectors behind the front panel, just behind the Trac buttons. They just plug in the speakers (wires) into this junction harness that feeds directly to the Amp under the seat. These are called IH1, IH2 and IH3. We are not messing with the IH3 because that is the SubWoofer, and we are keeping that in tact, and using the OEM Amp under the seat to run the SubWoofer ONLY.
Here is the EWD showing the harnesses:
Here is an actual picture, with the completed harness. See the IH1, IH2, IH3 in the center right of the picture:
These Harness carry all of the speakers, front and rear. So all you have to do is buy the matchng harnesses, and then you can *snap* these together.
Here is the complete list of items needed, basic color codes, Pin #'s Note that you will need all harnesses in order to have automatic antenna functions.
Here is the picture of the completed wiring harness, including the Integration 15 Pin, the 10 Pin and the 6 Pin (IH1, IH2) Speaker Harnesses
Here is the actual wiring diagrams for the "do-it-yourself" Basically for any other type of head unit: This one is compliments of Steve Ishii. Note here that I have revised this wiring diagram to now show a installation of an Antenna switch. I was unhappy that the antenna would go up and stay up, even when playing the CD. This is NOT how the OEM radio works. If your playing a CD on the OEM radio, the antenna stays down. With this diagram, you can control the antenna whenever you want with the switch. You can see the switch on the last picture of the actual radio installed in the dash.
So this is the whole systems wiring. Total cost, $50 and some time.
_________________________________________________________________
Now for the actual Speaker upgrades. First is the speakers that Wes has built for me and for Steve Theodore. These speakers can handle full 100% volume with 0 distortion. Wes has retrofitted the OEM front door speaker boxes with these 4" Peerless 830516 CD Woofer W/ 20MM tm02j6 Audax tweeters W/ crossover.
The new rear speakers are rated as high. They are Audax VP160OGO. FYI, when I took out the rear OEM speakers, they were stamped "15W" which tells you the overall rating of the OEM system.
Front Speakers:
http://www.97supraturbo.com/Radio Conversion/New Door Speaker 3 (Large).jpg
REAR SPEAKER:
Now for the Head Unit that I just got.
I was lucky to get the brand new Nakamichi CD 500 HU. These are rated at 47W per channel into 4 ohms. Including a SW Out, which we are not using because we are using the OEM Amp to pump out all its got just for the SW. This new unit is MP3 compatible, and I have already made 1 CD with 150 songs on it. The Nakamichi also has 10 different color display settings to match any OEM car display colors. I am using Grn/Grn, and Amber/Grn for now.
Here are a couple of pics of the finished install:
Green Green:
Green Red:
So, that is my install. This system pumps plenty enough bass for me. Enough so the rear view mirror shakes, and I can feel it in my chest. I can crank it full up without any distorion.
Total cost depends on the Head Unit of course, and I cannot recommend what you would decide on. I picked this Unit because it was a single DIN, so I could install new guages, its MP3 capabilities, and its Illumination schemes.
But I paid around $275 for about everything except the head unit.
Also forgot to mention that you will want a single DIN Box to cover the lower section if you switch to a single DIN radio. I bought one at CarToys for $30 to find later they are $10 on Ebay:
Or call Elmhurst (Curt) He has them as well.
Part# 55521-16030 pocket 1 din plastic list $5.33
I glued a flat peice of plastic over the box opening so I could have a flat area to velcro on new guages
Hope this is of some use for for anyone thinking of a *mid* use style of upgrade.