adding ws420 to stock 2007 kenwood system

[gmarkham1]

I have purchased a ws420 for my stock kenwood stereo for my 2007 21v. I am hoping for some installation tips on integrating with the stock system. I have the factory HU(model kts-mp400mr), 4 ch amp, sub, and tower speakers(1 pair). I started the install yesterday and noted the boat speakers(4 of them) are hard wired to the HU(not connected via RCA).

I want to connect the in boat speakers to the pre-amp for volume control, but I am unsure of the best way to do this. I am satisfied with the in-boat sound(i.e. no amp) for now.

After connecting everything (except the in boat speakers) to the preamp, I could not get the sub to work, does this have something to do with the way the HU is set up? there is a seperate output on the HU for the sub?

I know the factory set up is not the best, but I am on a very tight budget, and not much of a audio geek, some may say def-tone even. but I am trying to make the setup more family friendly, and get a little better quality/voume out of the tower speakers.

if their are inexpensive upgrades I can make to my system, please provide suggestions.

any recommendations on hooking up in-boat speakers and getting the sub to work are appreciated!

[DOCDRS]

https://forum.moomba.com/showthread....de-and-install

[gmarkham1]

thanks doc!
I read your post yesterday and it just doesnt answer my questions as you did not have the stock set up I have. as of right now, my boat speakers are not connected to an amp, and also need to get the sub working!

[jmvotto]

what amp do you have?
you most likely will not be able to do towers, in boat( cabin and Bow) plus the sub off of one single 4 ch amp.

[newty]

To utilize all three pre-amps you will need another amplifier for your interiors or tower. Otherwise one or the zones will not be used on the ws420.


What amp, tower speakers, and sub are you running?

[gmarkham1]

stock roswell tower speakers and stock 4 channel kenwood amp, stock sub for 2007 supra