2014 silverado: Installing subs

[Singlecab_vic]

So I recently went to a stereo shop and had them do the wiring for a sub and amp with my stock stereo I have a regular LT. According to the guy they pulled signal from both right and left pilar speakers from floorboard. they connected a high/low converter so that I can keep my stock stereo. I connected a 1000 what amp with a sony sub to test and the results are horrible. It sounds like there's no sub at all?

 

Has anyone had this issue? Or have any suggestions why this may happen? I thought I read that you need to pull signal from head u it or from p but I don't think my regular cab LT model had amp?

[Slammed14]

on my lt im not sure how they did it but i had a clarion eq installed then had a 4ch amp ran to the original door speakers and a 1000.1 powerbass amp with 2 kicker cvx and it sounded great!! voice was crystal clear and bass hit nice n loud

[Carder09]

Is the sub playing at all? Is the amp switched to low frequency only? What about your LPF setting? Hz in the correct range? Bass knob at all? I could go on and on lol. Somewhere either the shop messed up or you need to do some adjustments....

[KUUG]

I believe there is a switch on the converter that you can change, either that or try your amp first. I haven't hooked one of these up in years though.

[SarahsGMC]

Moved to audio section

[Mudsling]

on my lt im not sure how they did it but i had a clarion eq installed then had a 4ch amp ran to the original door speakers and a 1000.1 powerbass amp with 2 kicker cvx and it sounded great!! voice was crystal clear and bass hit nice n loud

did you keep your stock radio? im looking to do the same thing, upgrade speakers and put a sub in there.