Top 20 Alpine MRD-M301 Car Audio Amplifier Questions & Answers

Hello diana_soto55,

The MRD-M301 is a discontinued model but originally sold for around $250-300. A more powerful current model is the MRP-M500 that sells for around $200 and under at discounted online stores.

Hope this helps.

http://www.shopping.com/xPO-Alpine-Alpine-MRD-M301-150W-x-1-Car-Amp-Mono-Subwoofer-Amps

check your fuse on the amp hopefully you didnt burn it did you brige 2 subs into 1 channel on your amp

HI DUDE .. U CAN ONLY SINGLE PC OF JL SUB BY BRIDGE MODE ... COZ UR MTX AMP HAVE 300WATTS RMS ....

No, needs repair..Contact ALPINE ELECTRONICS OF AMERICA, INC. 19145 Gramercy Place, Torrance, California 90501, U.S.A. Phone 1-800-ALPINE-1 (1-800-257-4631)

have you disconnected all inputs and outputs on amp and retried starting it power only? if so your amp has an internal solder bridge and must be repaired by authorized repair center. Repair it or replace it at wholesale price from www.godspeedaudioheaven.com

have you disconnected the inputs and outputs? try that if problem persists you have a solder bridge internally which can only be repaired by authorized repair center if your amp is knackered either repair it or buy a new one at wholesale from this site:
www.godspeedaudioheaven.com
for all your needs also good place to make cash!

you could have a bad ground or the power wire could have a short i would start there

disconnect all inputs and outputs then restart it if problem persists you have a internal solder bridge youll need to have it repaired by authorized repair shop or buy a new amp at wholesale from this site:
www.godspeedaudioheaven.com

check all fuses on the unit, pull them all.
look for a way of resetting the amp.

LEAVE THE MAIN FUSE OUT TILL THE INSTALL IS COMPLETE!!!

that way you wont short a screw driver across the terminals on to the chasis.

Best thing to do is call the dealer and tell them you replaced the battery and the car didn't have an owners manual. They can get pull one off their computer, they just need a S/N from the radio. If that doesn't work, I can tell you a different idea. Don't forget to leave feedback

is this a new problem or has it always done it?? it mos tlikely needs repairs, but try this first. Hook up ther + of one sub to the speaker + on the amp. Hook the - of that samne sub to the + of the other sub. Then connect the - of the other sub to the speaker - on the amp. This will run the speakers in series and will put alot less strain on your amplifgier. It will not "hit" as hard but it sbetter then having it shut of fall the time. I would also make damn sure that:
Your ground wire is large enough and properly grounded. It should be BOLTED to a solid poiece of metal on your car. Use a screwdriver, whatever so scrape off any rust as the connection should be a clean, BARE METAL connection. Next make sure your power wire and fuse are ok. If you are using round glkass fuses, replace it even if it looks good. I have seen those fuse smelt the solder in the ends. They can look great but really be bad.

SO go through all the basics and if it still gives you problems then it needs repaired. Please dont rate me un-helpful.

I am not familiar with your amp, but any amplifier performs best when the output stage effective resistance exactly matches the load resistance. So, read your 15" subs and find out number of ohms, then set the amp to that number. according to your amp's specs: if you have 2 ohm speakers, you can draw 350 watts from your amp. so purchase 2 ohm speakers

Check your gain pots as well as audio pre outs on amp. sometimes pre outs will get loose and be unable to make a connection.

Make sure the amplifier setting "disable" is off then turn off remote power and turn back on.

1. Mechanical Issue: There might be a mechanical problem with the disc drive or the eject mechanism. It's possible that a part is jammed or not functioning correctly.
2. Dirty or Damaged Disc: If the disc is dirty, scratched, or damaged, the player may have difficulty reading it and thus not ejecting it properly.
3. System Error: There could be an internal error within the player's software or firmware causing it to not recognize the disc properly or to malfunction when attempting to eject it.
4. Power Issue: Sometimes, power-related issues can affect the functionality of electronic devices. Ensure that the player is receiving adequate power and there are no loose connections.

Here are some troubleshooting steps you can try:

• Turn off the player and then turn it back on to see if it resolves the issue.
• Try ejecting the disc using the manual eject button (if available). This button is usually a small pinhole near the disc slot. You can insert a paperclip or a similarly sized object into the hole to manually eject the disc.
• If possible, try using a different disc to see if the problem persists. If other discs work fine, then the issue may be with the original disc.
• Check for any visible obstructions around the disc slot and remove them if present.
• If none of the above steps work, you may need to contact Alpine customer support for further assistance or consider taking the player to a qualified technician for repair.

Question edited for clarity. https://www.google.com/search?q=alpine+vie-x077+wiring+diagram https://www.google.com/search?q=alpine+vie-x077+installation+manual ..

After researching, it appears that there is no direct evidence suggesting that the Alpine TDM 7543 stereo unit has the ability to switch from green to red lighting. This is an older unit and specific information can be challenging to find. Your best option to get a definitive answer may be to directly contact Alpine's customer service or refer to the original instruction manual.

Help here https://www.google.com/search?q=hange+the+language+of+my+alpine+car+stereo+(700w)+to+English ..

I found wiring diagram at 2000 Dodge Ram 1500 Stereo Wiring Diagram ' Dodge durango, Dodge dakota, Dodge ram 1500 (pinterest.com) and wiring color codes at 2000 Dodge Ram Pickup Car Stereo Wire Colors and Locations (the12volt.com) but I recommend to consult an auto electrician for authentic connections.