Hi guys, got myself a new Sony headunit. I have the ISO adapter and I understand I need to get myself a diversity aerial adapter, but I have 2 problems:

 

1) I have wired it in continuous power supply mode (so I dont need the key to turn the headunit on) but now the aerial always stays up

 

2) When I removed the orginal headunit there was a black wire attached to the bottom of the headunit, this was the ground cable as the other end is attached to the chassis. My Sony headunit doesnt have anywhere to attach this wire but it does have the rubber knob at the back. When I was putting the headunit and cage back into the dash there were sparks when I put the top screws in so I went no further. This seems like a grounding issue, should I connect the ground wire to the rubber knob?

 

Any help is much appreciated.

 

Thanks, Amar.

Sounds like you have more of a problem than grounding mate, the outside of a head unit should never eath out as it shouldn't be live in the first place!

Erm,

 

1 Disconnect the battery!!!!!!!!!!

2 Attaching the earth to a piece of rubber isn't helpfull, its a insulator not conductor

3 check you have the + correctly installed as it shouldn't spark???

4 trace the - wire and attach that to the chasis,

5 To get the arial to go down you should just need to manualy turn the H/U off???

Hey guys, thanks for your replies!

 

Turns out the loom didn't have a earth wire, and the old headunit must have been earthed using the additional wire. I spliced the earth wire into the black wire on the Nissan-to-ISO adapter and everything is now fine! :D

Cool, good stuff!!