APSM-1500 has changed my mind..

[AwesomeStranger 10+ year member]

Yeah I wouldn't mix them I'm just asking if I should just get my old bat under the hood out and put this yellowtop in.

 

[SourDeez 10+ year member]

I would put it under the hood and then eventually double up another yellowtop and throw it in the trunk. Best results that way I am betting.

 

[AwesomeStranger 10+ year member]

I would put it under the hood and then eventually double up another yellowtop and throw it in the trunk. Best results that way I am betting.

Just got the d35 installed at Advanced Auto. I guess I won't be needing a bat under the hood for a very long time, so it's worth it. Knowing that if the resting voltage ever drops or the bat doesn't last under warranty I can just swap it out free of charge which is nice.

Was doing this before yesterday but, when the bass drops low the music stops for a second then plays again. I'm guessing bad amp ground? It's on the rear seat bolt. I fixed my ground for the headunit yesterday and seemed to of fixed it but maybe the amp just can't take the lows very well?

 

[SourDeez 10+ year member]

Just got the d35 installed at Advanced Auto. I guess I won't be needing a bat under the hood for a very long time, so it's worth it. Knowing that if the resting voltage ever drops or the bat doesn't last under warranty I can just swap it out free of charge which is nice.
Was doing this before yesterday but, when the bass drops low the music stops for a second then plays again. I'm guessing bad amp ground? It's on the rear seat bolt. I fixed my ground for the headunit yesterday and seemed to of fixed it but maybe the amp just can't take the lows very well?

Did that happen with the BRZ, too?

Seat bolts are never good grounds.

This sounds like a headunit problem though possibly.

Heres a quick troubleshoot method I use..

Get a RCA to 3.5mm adapter at radioshack/walmart

Plug ipod directly into your amp.. your ipod (or whatever) is now your headunit.

 

[AwesomeStranger 10+ year member]

Hmm so that just tests if it's the head unit or amp? Nice trouble shooting. I think my head unit ground might be coming loose when the bass hits really hard. Or it's my amp ground. Might relocate that and see what happens.

 

[SourDeez 10+ year member]

Hmm so that just tests if it's the head unit or amp? Nice trouble shooting. I think my head unit ground might be coming loose when the bass hits really hard. Or it's my amp ground. Might relocate that and see what happens.

Grounds dont usually just come loose when the bass hits.. Trust me on that.. They are most likely just resisting

Yes.. plug a phone/ipod directly into your amp. Crank up a song and if it works, then you know its a problem with your headunit / signal.

If it still does it, you know your headunit is fine.

 

[AwesomeStranger 10+ year member]

I'll see what I can do. I will find a better spot and sand to bare metal then fasten the ground to it like I did my big three chassis ground. Might hit up walmart for that RCA to 3.5 jack cord when I get off work.

 

[av83 10+ year member]

Seat bolts are never good grounds.

as long as the ring terminal is underneath everything, and flush with well sanded sheet metal, i think it should be fine. On the other hand, most seat belt bolt grounds I've seen are done improperly.... in between the nut and the strap holder, on unprepped metal, etc..

How about some pics of your install, OP?

 

[SourDeez 10+ year member]

as long as the ring terminal is underneath everything, and flush with well sanded sheet metal, i think it should be fine. On the other hand, most seat belt bolt grounds I've seen are done improperly.... in between the nut and the strap holder, on unprepped metal, etc..
How about some pics of your install, OP?

They are usually a body ground though.. not frame. Most seat bolts arent directly to the frame.

 

[av83 10+ year member]

They are usually a body ground though.. not frame. Most seat bolts arent directly to the frame.

What if its a unibody?

 

[AwesomeStranger 10+ year member]

as long as the ring terminal is underneath everything, and flush with well sanded sheet metal, i think it should be fine. On the other hand, most seat belt bolt grounds I've seen are done improperly.... in between the nut and the strap holder, on unprepped metal, etc..
How about some pics of your install, OP?

It's ghettoed up right now but I have only have the amp less than a day.

Amp ground:

the crimp is fu**ked up I know. But it's really snug, might not be getting the proper ground as it's not sanded on the bolt surrounding.

I noticed yesterday when I added my head unit ground to the frame inside of the dash it helped stop this stopping mid song. I also noticed the heatsink on the back of the headunit was super hot when I was testing with it out of the dash when I hooked up the amp for the first time.

 

[cdc351jeferson 10+ year member]

bet that ground is your problem if its not sanded down

 

[SourDeez 10+ year member]

Yeah I would probably try to find a better ground

 

[AwesomeStranger 10+ year member]

It's not sanded, but it didn't give me any problems before. It's only at high volumes that it cuts out and then turns back on. I guess the ground isn't doing it's job so the HU cuts off or something.. Could a loose HU to wire harness to this? I checked everything yesterday and it seemed okay.

 

[cdc351jeferson 10+ year member]

well seeing as the ground is more accesible and faster to fix why not fix that then bump your system hard and see if its fixed ?