Here's what I tried initially:
1) hardwired to both pos and neg of cig lighter (I soldered them to the cigarette lighter) - noise.
2) hardwired positive to cigarette lighter (soldered), ground to chassis (bolt over the transmission, metal on metal) - noise
3) put my cig charger back together the way it was - noise
I don't mind trying a jumper for the audio lines, but I'd rather not if possible (I suppose they are shielded.
Any input or suggestions to fix this?
With power plugged in, everything works great, I am also using the aux in for my PDA with GPS, so music is playing, and when my GPS wants to tell me to turn, the music momentarily cuts off, GPS speaks, and then music comes back on!! That was an added feature, don't even know why that happens.
Thanks