Can someone pls help,i have 1 magnat(the rock 800),1 vibe black boxII 300rms bridged i've got 500rms black air sub and 300rms fli sub. on my HU i've got L&R front,L&R rear preout + L&R sub preout i've hooked the front spks to the rook800, the rear spks to another amp i've spilt the R subout with "Y" rca for the vibe bbII& the 500rms sub i've also split the L subout with"Y" for the magnat to power the fli sub on bridge mode. the mag amp is on 4 channel and the vibe on L&R sum mono they both work perfect. is it the right connection.Thanks