20 Most Recent Pyramid 705CD 7-Band Car Equalizer - Page 6 Questions & Answers

locate at service center in market....

Car Audio &... | Answered on May 21, 2019

I believe the white striped wire would be positive (red clamp), BUT DON'T COUNT ON THAT OR GUESS AT IT. Find someone with a volt meter to test the leads and tell you which is positive (red clamp) and which is negative (black clamp).

Car Audio &... | Answered on May 20, 2019

We're can I buy a sd card for my eonon d5156 stereo

Car Audio &... | Answered on May 20, 2019

Sony car radio cdxgt540ui buttons non responsive - remove four screws on reverse side of faceplate, pry open with fingernails starting at the top right or left corner of the face plate once opened remove board on the reverse side of the LCD there are small brackets holding the LCD use a needle nose to pry each bracket in straight position then remove LCD for ten seconds then place back on to board and been brackets back in place. After these steps the front buttons should work again this process worked for me.

Car Audio &... | Answered on May 18, 2019

This more than likely means that you have a blown fuse. Go to an electronic store and replace the fuses. Make sure you get the exact same sizes and types that you had before.

Car Audio &... | Answered on May 18, 2019

Figure out if its a blown coil or damaged cone

1. Blown Coil:

The voice coil is the component, which amplifies the current run through the speakers. If you doubt that the coil is damaged, connect the terminals of the coil to a multimeter, and if there is no resistance detected, it could be because the coil is damaged.

2. Damaged Speaker Cone:

If there are no issues with the coil, the next possibility can be a damaged speaker cone, which can be detected easily. In normal condition, since the subwoofer is built on a suspension system, the cone is easy to move. Look for the following signs to understand that your speaker cone is damaged:
  • If you could gently take the cover of the subwoofer off and check for the movement of the cone by gently pushing along the sides
  • If the cone is rigid and does not move its indicator
Once you make sure that you have a blown subwoofer, the next step will be deciding on how to replace it. Imagine if your subwoofers can be fixed easily with minimal efforts within a set budget rather than buying a new one.


1. Detaching the speakers:

Use a screwdriver to take the speakers from the place where it is mounted and take off the attached wires. After that, separate the surround and the frame by removing the glue on the frame edge by using a small knife or a sharp object like a tester edge. Be very careful when you do this because the frame edges can be damaged.

2. Separate the voice coil and speaker cone:

Using the same small knife or a tester edge, slowly take out the voice coil from the speaker cone. Cut all the terminal wires and keep the voice coil, speaker cone, and spider separately in place.

3. Fixing the new voice coil:

Clean the trapped dust particles in the voice coil gap carefully by using the compressed air. The voice coil is the piece of wire that is attached to the speaker cone, and that is responsible for amplifying the current, which is passed through the speakers. Remove the old voice coil and fix the new voice coil within the space if the problem is with the coil. Place the spider around the new voice coil, replace the spider and then the speaker cone in the middle. Don't forget to apply enough glue so that the cone doesn't come out. Let it dry for about 24 hours.

4. Fixing the speaker frame:

After it is dry, apply glue on the surround to fix the speaker frame and the cone in the right position. Now we are about to reassemble the components of the sub-woofer.

5. Fixing the wires:

Once all the components are put together in the right place, use a soldering iron to connect the old terminal wires with the new voice coil terminal wires, if the voice coil is replaced. If the new cone has no pre-attached wires, use small wires to the terminal wires, and then create small holes in the cone. Place the wires into the holes and connect them to the voice coil using the soldering iron.Now the connection is also reestablished.

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Car Audio &... | Answered on May 18, 2019

I have the same problem with a 2010 Murano. It doesn't happen in the winter like you said. It has to do with the air conditioner or with humidity. I just drove today with the AC off and the problem went away. It could be a power problem or a moisture problem.

Car Audio &... | Answered on May 17, 2019

Hi Ed, check if the Vol + is not stuck on the remote control
Check it and comment
Greetings Franco Dosil
Hola Ed, controla si no se quedo trabado el Vol+ en el control remoto
Revisalo y comenta
Saludos Franco Dosil



Car Audio &... | Answered on May 13, 2019

Long time since the question was asked, but if someone googles it.
I have a Vauxhall Vectra -04 with a cdr 2005 radio/cd player.
Suddenly when I started the engine the radio showed ”panel” I turned radio of and then pressed AS and turned radio on while pressing AS, now it said ”10 safe” but I couldn’t enter the code. So I disconnected the battery and then reconnected it again, then turned ignition on, the radio said ”10 safe - - - -” and I was able to enter my code, then pressed AS and heard a beep, now it’s working just fine again

Car Audio &... | Answered on May 13, 2019

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