My '07 GXP has the Monsoon system. I replaced the head unit with a JVC- KW-V350BT. I used the Crux interface as recommended and replaced the factory sub with a Rockford Fosgate Punch 8" shallow dual coil 2 ohm sub. Now I get no sound from the sub :frown2:. All the other speakers are working fine. I have checked all connections, power leads and wired the sub the same as the factory was wired (+ to + , - to -). I do not know if the factory sub was working or not. I assumed it was before the upgrade. Could the sub channel in the Monsoon amp be bad?
Is the head unit set to drive a sub directly? The stock head units send everything to the amp and a crossover there supplies the sub. If the new one is set for a sub it isn't sending anything to the amp for the crossover to send on.
JohnWR ... The head unit has 2 settings for Speaker / X'over: 2 way and 3 way. I have it set for 2 way since the Monsoon amp should be diving up the x'overs.
I have to agree with John. Either that or get another amp altogether. Find it odd that you don't know if the sub was working before. That tidbit of information could change a lot of things that you might do to troubleshoot this.
The system sounded ok before the upgrade with the factory stuff. After the upgrade I used it for a couple of months but noticed that the speakers on the doors (which incidentally I upgraded at the same time) seemed to be producing all the frequency ranges. So I got suspicious that something was not working well. Maybe the sub circuit failed after the upgrade, but I do not have any data facts to prove it. I just know I do not have any sound out of the sub.
I am leaning towards a mono amp just for the subm (something like Alpine MRV-M500), but I am struggling on where to mount it. Suggestions are welcome.
I was thinking about that location. I am not sure what real estate is available but since I have the waterfall removed, I will do some measuring. Thanks !
Update: No cigar behind the waterfall. The only option I see (and very tight) is the storage compartment in the waterfall. But it has to be a really small amp. So the saga continues ....
Yes, except that it is a MAJOR project and I am not inclined to start that one ! Just looking at the wiring diagram for the Monsoon gave me a headache.
The question is, how to bypass the Monsoon amp? I am pretty handy wiring up head units, amps, etc. so I can figure the new wiring for the new amp to drive the system.
John ... thanks for the drawings. I did not have that one. The one I attached is the one I have. To clarify, these are the terminals that connect to the OEM radio, correct? Do you know what else needs to remove the Monsoon Amp (as it relates to wiring). It has 3 different wiring connectors on it. In the diagram I included I see on the left something related to the Inflatable Resraint, but I guess it has no connection to the amp at all. (Not very good reading electronic diagrams ...). Stump
The X1 and X2 connectors are the ends of the stock harness that plug into the back of the stock head unit. I did not include any amp connectors because I am not at home and do not have them with me, but can post them tonight if you want them. Connector IDs are referenced on the drawings I posted.
The "Inflatable Restraint" reference is the so-called clockspring mechanism that is in the steering column to carry wires into the steering wheel. It is applicable to the radio system because the steering wheel control wiring goes through it. Its primary purpose is to power and control the driver's airbag, so it is included in the inflatable restraint system.
It looks like the amp connectors are also labeled X:
X1 = power, ground, and subwoofer
X2 = Speakers
X3 = Input from head unit
John ... Please post the amp connectors. Might help me visualize how to remove the OEM amp and replace / connect to a new 5 ch one. Thanks for your help !!
Last spring I added the sub while replacing my head unit in a non-Monsoon system.
Installed a Kicker 8" Comp RT in the OEM box. A mono JL Audio JX 250/1 is mounted behind the rear seat.
The sub is very quiet at low levels, but you definitely notice once the volume goes up.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Pontiac Solstice Forum
1.4M posts
38.2K members
Since 2003
A forum community dedicated to Pontiac Solstice owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, maintenance, trade parts, and more!