i put it aside for a little while and got curious today so i grabbed a g4 put a adapter on the passthrough plugged it in and bam, works great. tried putting a kr8 carto back on and nothing even though it was connecting, tried using a 901/808 adapter then the kr8 carto and still nothing, and nothing with the dual coils either. so for some reason my passthrough only wants to work with the walwart on g4 cartos with a 901/510 adapter.. it doesnt make sense