I posted a while back, and thought I'd solved my Sound Issue, but it seems all is not well with my cab's wiring. It seems to be more of a hack job than I thought.
Here's how my Blast's Sound is connected;

Here's CN10;

Here's CN1;

And from CN1, directly out to the RCA's;

And finally CN5;

So at the moment I get perfect sound from the RCA's but SUPER low volume (Barely audible from MAX Cab + Board Pot) from the JAMMA Edge (with buzzing).
Before we figured that Because the RCA's and Jamma Edge were both attached it had blown the Sound AMP and getting a 001 loom would fix this.
Am I correct in figuring I need to reconnect 14&30 / 15&31 of CN1, to 31&33 / 32&34 of CN10, then replace the Loom with a 001 and also replace the sound amp.
Would this fix the problem?
Thanks for any help guys! So confused on what the crap is going on

Cheers!