u/-MountainMan69-

This is only my 2nd install and the first one that I had done didn't need an lc2i pro. I have a 2024 kia seltos LX and I have ran everything to what I believe is proper. I have a 4gauge power wire going from battery to a 150A fuse its like 6-8in from the battery and then the rest of the 4 gauge runs through the firewall on the left side of the car to the amp (MTX thunder500.1 mono amp) mounted to the back of the rear seats. I have grounded my amp and lc2i pro to the backseats bolt and sanded it down to bare metal. My lc2i pro is under the passenger seat up front. The RCA/REM OUT/GROUND wires running through the fire wall on the right side. I have tapped into the 12v cigarette spot with a posi tap for my REM in on the lc2i pro. I have also tapped into both front doors speakers with posi taps and double checked they are into the right positive and negative on the speakers and lc2i pro. My power for my lc2i pro is running under both seats to the right side and running with the 4 gauge going into the same power spot on my amp as the 4 gauge(maybe this is the problem, havent checked with my multi meter). I checked the ground and 12v on the lc2i pro with my multi meter and the readings are good. Im getting sound and bass but my lc2i pro has a solid red light on by the power (its supposed to be blue right?) My sub is just a single ported 12in MTX audio sub. I've never used on of these before and im not sure how to tune it properly with my amp and bass knob. If anyone has any idea or can help it would be much appreciated! Day 4 of trying t0 figure this out.