Blower interferes with radio?.....

[TVR Beaver]

As we are laid up for a week or two, I’ve been playing with fitting a AMP to my head-unit and upgrading the speakers… all well and good until I turned on the Blower!.. it interferes with the thing sounding like a giant Bee!... Not sure if I’ll get any engine noise when I re-start her ?.. may be cooling fan (must try them)… But anyone know how to resolve the issue?... You could buy suppressors in the old days as I think I fitted them on a Mini or something?.... Any suggestions??

[EGB]

Try Maplins. 1000s items in stock.

[dnb]

Ground everything properly before you do anything else. Stereo and amp should go to a common ground, not the lousy dash wiring.

[TVR Beaver]

The Amp has a feed from the battery (+ and -)... but the head-unit has it's supply from the loom although I've never had issues here before the Amp?... do you think it could be this??
Got to say the RCA cables run down the middle of the car (to avoide other feeds or so I thought).. but do pass under the heater panel.. although its the blower motor that obviously causes the noise??
.
Have checked Maplins.. can't find a lot.. but Halfords do the old type for about £3?

[dnb]

It'll take about 10 minutes to prove me wrong by wiring the stereo ground to the battery negative... I have had similar problems with bad grounding.

[TVR Beaver]

dnb said:

It'll take about 10 minutes to prove me wrong by wiring the stereo ground to the battery negative... I have had similar problems with bad grounding.

Indeed.. will give it a wiz tonight!!

[chris52]

John You may find this interesting reading http://www.ehow.com/how_5686045_eliminate-engine-n...

[chris52]

John You may find this interesting reading http://www.ehow.com/how_5686045_eliminate-engine-n...

Not sure how I double posted then.

[MPoxon]

I am planning on getting rid of my amps and reverting back to running the speakers from the head unit as TVRs appear to be very electrically noisy and the amplifier just introduces more wiring to pick up and amplify said noise.

..... not that I actually remember the last time I used the stereo.

[mrmaggit]

Just what I was going to say.

I only ever turn the radio on when I'm parked, engine off.

[RichB]

It's an old cliché for TVR owners to say "I only listen to the engine sounds" but I don't subscribe to that point of view. I spec'd an ungraded radio/CD/amp/speakers set-up in my Griff when new and it's been wonderful being able to listen to my favourite music as I've toured Europe in my car.

[TVR Beaver]

Well grounding my HU to the AMP's supply cut the buzzzz by at least 50%... so only sounds like a small bee now.... Engine fans were not noticable when I turned them on...
So will try get rid of the whats left with looking at wires / routing / suppression etc.
.
TBH i'm not in the car that much to need a sound system but its something to play with without getting oiled up, covered in wax-oil etc... mind you, still followes my TVR experiance to date... never workes first time or as it should!

Chris... I'm assuming yours has no inteferance at all... typical!!

Edited by TVR Beaver on Friday 10th February 07:57

[chris52]

I agree having a nice music system in the car for longer journeys is great. But blasting round country roads with the exhaust note burbling and pops and bangs on over-run is the best sound track you could hear.
Chris

[chris52]

TVR Beaver said:

Chris... I'm assuming yours has no inteferance at all... typical!!

No I don't have any interference whatsoever.
Chris