Alright I got the schematics.....
What you will need to do is cut the positive wire of both the turn signal and sidemarker. Connect the wires to the relays as the chart below.
Relay #1
pin85=ground
pin86=power from sidemarker
pin87a=power from turn signal
pin87=leave disconnected
pin30=output to both sidemarker and turn signal
Relay #2
pin85=ground
pin86=power from turn signal
pin87a=power from sidemarker
pin87=leave disconnected
pin30=output to both sidemarker and turn signal
The output of both relays(pin30) connect with each other to go to both the sidemarker and turnsignal.
Repeat the wiring setup for both sides of the car. Leave pin87 of all relays disconnected, but make sure that if you are using a relay socket to cap the end of the wire for pin87 or else it will short you car blowing three fuses. (I know from experince

)
Make sure to securely mount the relays. And just a note: If you have indiglo gauges, your gauges may blink with the blinker during when your lights are off depending on how you wired them. Though you can't notice it during the day and it causes no harm to the guages.
Hope this helps.....