I recently purchased the Sony XDP-MU110 from Crutchfield . This unit has a small 4 channel amp and digital signal processor . Would just like to improve sound quality with the non Sony 6 speaker system . I have veiwed many posts here as to the location of speaker wire tap in locations (passenger side console wiring harness) but would like to power the unit from another source other than the battery . Their are a red (acc) and a yellow (battery) wire that need to be connected . From what I've read the red wire should be ok with the power antennae harness wire . The slightly larger gauge yellow wire is my question . Where can I locate power for this connection ? The amp is only rated at 17 watts x4 rms 45x4 max and would be mounted under the passenger seat . Simply put I do not want to run through the fire wall to battery for such a small unit. Does anyone have suggestions or know of an adequate tap in source near this wiring harness ? Enjoy all the detailed info here it really helps .