I'm fitting a new Kenwood into my 78 Roadster and I'm have painful time with power and the head unit.
I inherited an ignition live off the green / white wire on the loom. I put my own earth into one one of the screws that holds the glove box in place - both are good (tested earth off the ignition switch itself and the ignition live. I took a feed off the purple wire running into the clock for my perm live (clock still happily ticking along).
I've got no fuses blown in the car, or in the head unit itself.
I wired one speaker into the speaker iso block, powered it on a it ran fine. I powered off, disconnected it all and went to fit the speakers into the doors, route through the car etc.
I then went to connect it back up and - dead as the proverable. So I unplugged the new speaker, reconnected and still dead. All fuses checked and fine.
Stripped back all the tape I'd put around the connectors - all showing just over 12v in ignition or perm live on car side, when reconnected showing same on radio side. Checked my ISO block both sides and over 12v.
The supplier for the head unit kindly put it onto their test ISO block for power and it came straight up, so I know I've not popped the head unit somehow.
Gave it one more go, still nothing.
I took the main plug out the radio (has its own consolidation connector from the ISO block). Checked there - 10.8v. Perm and Ignition.
Thinking this is odd - I go back to the car side of the ISO connectors - 10.8v.
When I start the car, the ignition light stays on until lifted off tickover - so I'm thinking, have I made a bonehead wiring decision or have I got a starter / alternator problem ?
Any advice / help greatly welcomed !
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