recommend car audio dealer/installers in Socal

[point1]

Hello everyone,

I have a 2020 TRP and I would like to improve the SQ.

I plan on keeping the headunit but want to swap out the speakers with focal, JL or morel. I also want to swap out the stock subwoofer and add a high end amp.

Would like to also apply sound deadening to reduce cabin noise.

Looking for recommendations in OC/IE area.

Thanks!