Well I finally got everything sorted last night.

Low level inputs to amp (Rear L & R only).
Bridged pair of speakers
Phone Mute lead afetr amp in speaker wires

All works great, but just a few questions...

1. Should I be able to hear a faint hissing noise from the speakers
when all is powered up but volume on head unit turned right down??
With the engine on (2.5L Diesel) its not audiable. If not, any
suggestions as to what may be the cause?

2. Can I use the low level "Front" input that are currently not used
for another source - iPAQ / TomTom? I know that the stereo wont cut
out when she starts talking to me but thats not a problem.


Thanks guys...
Jon




The question is where to I put the mute lead / box for the car kit?
Can I simply take the wires that go from the amp to the speakers and
put the mute lead in the middle or will this damage the mute relay?

If you're using low level input, it'll need to go between the amp and
speakers. You'd need to check that the mute lead either isolates the
amp outputs by relay, or that it's of sufficiently high power
capacity. If it's not, you could achieve the same thing yourself with
a couple of relays.

Also, if I only use 2 speakers (its going in a Landrover so no
brilliant sound system!) what is the best way to utilise the amp -
should I bridge or just use 2 channels, leaving the other 2 empty?

Bridging it will give it more power, effectively increasing it's
damping factor at lower volumes, so I'd do it that way - just make
sure the gain controls are set in a way which prevents excess power
going to the speakers.

Jon