I think all the Spec V's come with a "subwoofer" located in between the two back speakers on the back deck. It's pretty small (roughly 6.5-7") but only produces low frequency audio compared to the full range speakers in the rest of the car. It's supposed to give the system a more full sound, but in all honesty, i wasn't impressed. Plus being on the back deck, it get's heat soaked by the sun which probably doesn't help. Nissan really should've put it in the side of the trunk or something and used an 8". Keep in mind though, i have the non-rockford system, so it might be different for the one's who have it.

If you notice, there are three plugs on the back of the factory (non-rockford) deck. One plug for power, front speakers, dimmer, remote, battery (for some stereos). One plug for ground, and back speakers. And one for what i can only assume is the subwoofer. You only use the first two plugs for an aftermarket deck, so be prepared to lose the factory subwoofer whenever you install another head unit (unless you can find someway to decode wires on the plug and make it work...i chose not to since my subwoofer sounded pretty bad anyway).

I plan on just grabbing a small 10" woofer in a box and an amp to throw in the trunk to round out the sound as it were. You could probably find some way to rig up a small aftermarket subwoofer to go in the same spot to give it a more factory look (you will need an aftermarket amp of some sort and the subwoofer should probably be classified as "free air" since it wouldn't be in a box).

thats not a good grounding point for the headunit. he didn't ground it to actual metal. just to plastic. this can cause the headunit to overheat. make sure you're grounding to METAL.

warwolf7 wrote:

blackout04v wrote:

thats not a good grounding point for the headunit. he didn't ground it to actual metal. just to plastic. this can cause the headunit to overheat. make sure you're grounding to METAL.

If it ain't connected to metal, this ain't no ground. I would like you to delete your post, your giving false information, the ground is not in any way a heatsink! If you connect you ground to a plastic thing what happens? The radio doesn't work because the DC need to be connected into a kind of loop and the ground is the "return" cable. This forum is about giving useful information, not misinformation.

IF you don't know what your talking about, shut up and listen.


Kindly

Matt

(just for you information, there is no picture showing where is ground cable is connected, I don't know where you saw that, maybe you posted in the wrong thread)

who the hell are you talking to? i know exactly what i'm talking about. don't talk down to me like a fucking little kid. i'm advanced mecp certified, i've done installs for years AND i work for a manufacturer. locals can vouch for my knowledge and work. so i think its you who needs to shut up and listen.

first of all, the ground he used IS pictured. maybe you need to stop running your mouth and open your eyes. the screw that he used connected to a metal brace, however his ring terminal simply touches plastic.

secondly, when you don't use a proper ground, the DC current is not flowing to a proper ground. just because a radio has a ground, doesn't mean its a PROPER ground, numbnuts. go back to high school electronics class before opening your mouth. when a piece of equipment does not have a proper ground, it can cause it to overheat. the negative current needs to flow to metal. when it doesn't, it has no where to go. leading to HEAT. do your homework.

you're right, this forum is about information. something you know nothing about apparently.

lol yeah ok buddy. you sure changed your tone after you got schooled. any retard doing anything electrical should know damn well that if you're going to ground something, it needs to be a proper ground. not a ring terminal touching plastic secured on by screw going into metal. current needs to flow in the same way it flows out. if it doesn't, it can build up heat.

easy enough to understand?

i never said it wouldn't work or anything, but i mean a good ground is a good ground. i was simply stating thats not the best ground. yes, it is only an 18ga but why half ass it when you can simply slide that ring terminal behind the plastic or many other places behind the radio to give it a better ground?

i've stabbed people with a screwdriver for less. i swear it