It was an’04. Funny enough, it had the same neck profile as the Riviera P93 I purchased about the same time…gave that one to the same guy along with the SG.
Alternatively…I’ve installed a longer speaker wire to allow moving the speaker cable easily to a head sitting on the combo cab. Requires less engineering. Pin the speaker cable short end in the back of the cab with a little strap and a screw to keep it from pulling off the speaker spades...