E36 stereo wiring

[robbo86]

I bought a new head unit for my car today and upon fitting it, discovered the bloody thing will not switch on. I have spoken to the maker who asked if it has a permanent as well as switched live. I replied that it probably does as it's replacing a JVC head unit which is 3 years old tops. (which is working perfectly). He suggested the headunit is probably knackered then and send it back.

I am mainly just asking am I correct or not?

TIA

[harry_p]

sometimes the switched and permenant wired need switching around on the adapter, i would double check that theyre doing what theyre supposed to.

although, with the ignition on both should be live so it should still switch on even if they were wrong

any signs of previous bodgery which you might have accidently disturbed removing the old unit?

i know on mine i couldnt get the dimmer to work because someone had messed with the wire on the adapter section so it was in the wrong pin!

[robbo86]

The instructions said that if the unit doesn't switch on, then switch the live and switched around on the headunits loom which still didn't work. No sign of anything being bodged or anything. The ISO adaptor looks new and neat and so does the original loom plugged into it.