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Subs will only work when the head unit is on radio???

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raelgrin | 18:41 Fri 16th Jul 2010 | Cars
3 Answers
I have two subs running off an apline amp. All hooked up to a Sony head unit and has been working fine for over a year. Two weeks ago the subs would not come on for no apparent reason. I took the head unit out and giggled the wires and it all worked again. Yesterday the subs were not on again but I had a play on the leads and nothing happened so I changed the unit from CD to RADIO and the subs came on... Now the subs only come on when the unit is on RADIO...
Any ideas why???
Thanks
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Avatar Image AlBags
That would be a head unit problem.
The head unit powers the amp through some Sub pre-outs? (DIN sockets)
19:13 Fri 16th Jul 2010
Avatar Image TWR
Are the connection tight?
10:50 Sat 17th Jul 2010
Avatar Image AlBags
They have to be, don't they? Sub with radio is fine.
Fault is on board, or in switching system on board.
14:46 Sat 17th Jul 2010

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