Just like to say great Forum.
I'm getting conflicting advise from two Incar audio store's, I have Sat/Nav installed in my E46 which i wish to keep, i wish to add an alpine amplifier F450 and upgrade the speakers to components, my problem is where do i run the high level speaker wires to my amp from, one store tells me to run it from the speaker wires from the Sat/Nav Head unit, which sounds right, another person tells me i have to dismantle my boot/Trunk to find them in there as there are no speaker wires from the head unit.
Is there anyone out there who can tell me the best place to tap into the speaker wire's. I intend to keep the OEM Sat Nav Head unit and upgrade to an Alpine F450 Five channel Amplifier with infinity comp's in the front doors and rear shelf and finally an infinity 12" Reference sub in the Trunk.
My system is standard it does not have the Hi Fi Upgrade.