The HKS VPC harness is too short (money saving thingy). Where are you running them that you find they are too long? Also, my opinion is that this device should be set depending on when you upgrade or change back to stock and therefore does not need to be right in front of the driver at all times. Glove box is fine.
It has been discussed before but I believe that this unit and the GCC/SAFC, etc. should be concealed and better yet, locked in the glove box. Stories of messed-up controls abound due to some valet or drunk friend screwing with it.