If all the speakers are amped how would you level match? Is this even needed?
FYI, there are two amp here powering all set, Alpine PDX-4 powering front door card and underseats and PDX-5 powering rest, all L7 speakers, underseats Jehnert, boot sub JL W6 (which is powered by PDX-5 mono).
What will steps for level matching in general?
Note: I am working in stages, next step will be to install Morel Hybrids in the front door cards.
X5 40d M Sports - Fully loaded, 7 seats.
Sold 535d LCI, Xenon Adaptive Headlights, ACC 2 (Stop and Go), LDW/TLC
Retrofits M5 heated/lumbar/memory and active backrest adjustment seats, rear heated and folding g seats, SAT Shifter, paddles (SA2TB), HUD, Rear blinds, Electric steering column, SA430 Folding and EC Mirrors, High Beam Assist, CIC, COMBOX Telematics.