Help with Kicker Subwoofer Upgrade on 2020 silverado LT w/o bose

[andrewb24]

I ordered the kicker subwoofer upgrade kit for my truck and installed it last week.  I drove around for a little while thinking it was working and was thinking I had some extra base but I guess I was wrong lol.  I checked yesterday and couldn't feel anything coming from the subwoofer and I have rechecked everything.   

 

 

(these are the install steps i took fyi)

I installed the power wire from the battery and went through the firewall then connected the power to the harness supplied.  I hooked ground wire to the bolt shown to attach to in passenger side kick panel area.  I tapped the solid blue wire and blue/brown wire as instructed with supplied t taps.  i routed the harness to the back and plugged both the subwoofer and amplifier up.  There is one connector back there not used (probably for the additional amp thats offered in another kit).  After running those wires i installed the provided fuse into the fuse holder.

 

 

Also I am getting ready to install a kicker key amp 200.4 but now I have to put that off until i figure out what is wrong.  

 

 

Any recommendations?  Only thing I can think of is that the t taps arent getting a good connection with the signal wires.

[scottay7]

Did you ever get this working? I plan on installing the kicker sub upgrade kit in my '23 TrailBoss LT but was a little hesitant since I haven't seen a lot of people in different forums install it.