Can I revive this thread?
I just bought a pre-LCI E90 with the base hifi (no tweeters). My goal is to buy aftermarket speakers (probably the focals) for doors and underseats.
Next, aftermarket headunit, probably a sony.
This has been enough for me to have pretty good sound system in the past (for example, on my e46).
I'm concerned about the underseat woofers. Would a decent aftermarket headunit (like a good sony) have enough power for the 8" underseat woofers, or would I need an amp? If I need an amp, do I need to run wiring all the way from the trunk?
Thanks and cheers!