My Firebird has 6 stock speakers. I would like to upgrade my Head Unit.
2+tweets in front door. 2 in back seats. 2 in trunk.
Can't seem to find a head unit that offers 6 channels instead of 4.
Is there such a thing? If not would I need to buy a 4 channel head unit AND an amp to power the remaining 2?
Also heard of bridging 4 of the speakers. Is this an effective method?
Gear suggestions are highly appreciated!
Thanks everyone for your input in advance!