1991 318is
Audio Setup:
Class D 1000W Memphis amp - powering Fi Q 12" Sub
Class A/B 250W Orion Amp - powering two PPI-365cs components
2 gauge amp power wire/ground wire
Pioneer DEH-80prs deck, internal amp turned off
When I'm driving I notice (fairly frequently, couple times on my hour commute to work) the head unit will "shut off" and I noticed the Anti-lock light light up on my instrument cluster for a second.
When this happens it cuts out the bluetooth connection from my deck/phone and I have to manually reconnect. I also noticed the headlights, and even the interior lights, hazard button, defrost button, cluster lights, dim with the music, even when there isn't much bass.
I upgraded all the engine grounds, chassis grounds, to 2GA wire and copper lugs with good clean connections.
Is this a battery issue (exide from Advance Auto) or alternator? The alternator belt is sufficiently tight, so I was thinking possibly the alternator itself as it happens when driving. Not sure if I have a 70A, or 80A alternator but I saw a 90A alternator available. I'm going to upgrade the alternator power wire when I have a minute, but if I need to replace I'll definitely add a thicker wire when its all apart.
Audio Setup:
Class D 1000W Memphis amp - powering Fi Q 12" Sub
Class A/B 250W Orion Amp - powering two PPI-365cs components
2 gauge amp power wire/ground wire
Pioneer DEH-80prs deck, internal amp turned off
When I'm driving I notice (fairly frequently, couple times on my hour commute to work) the head unit will "shut off" and I noticed the Anti-lock light light up on my instrument cluster for a second.
When this happens it cuts out the bluetooth connection from my deck/phone and I have to manually reconnect. I also noticed the headlights, and even the interior lights, hazard button, defrost button, cluster lights, dim with the music, even when there isn't much bass.
I upgraded all the engine grounds, chassis grounds, to 2GA wire and copper lugs with good clean connections.
Is this a battery issue (exide from Advance Auto) or alternator? The alternator belt is sufficiently tight, so I was thinking possibly the alternator itself as it happens when driving. Not sure if I have a 70A, or 80A alternator but I saw a 90A alternator available. I'm going to upgrade the alternator power wire when I have a minute, but if I need to replace I'll definitely add a thicker wire when its all apart.
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