My battery was disconnected for a new starter motor to be fitted - now it won't tune in. CD works but radio just hisses? I've checked aerial connections which seem OK. Radio lights up and looks like it should work but no sound - just hissing

Question edited for clarity. Make as well as model, and spelling of 'aerial'.
Question moved from Ariel Cars to Isuzu Trooper.

Doing follow-ups as new questions doesn't work here on Fixya. Click Comment under John H's reply to you. He gets a notification and will come back and help.

https://www.fixya.com/cars/t29866667-1999_trooper_3_5_petrol_electric_ariel

Your problem will be the aerial motor drawing power. Just have it replaced at a car radio fitting shop.

https://www.google.com/search?q=1999+Trooper%2C+replace+aerial

There is no fuse covering it, so it is a case of following the wire back.

https://fuse-box.info/isuzu/isuzu-trooper-1992-2002-fuses-and-relays

$60 for the part.

https://www.retromanufacturing.com/products/1990-02-isuzu-trooper-fully-automatic-power-antenna


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you have a short disconnect the wiring and test motor

I have never used a scanner of that type but I have seen them in use and know the principle of operation.

If you are certain the radio is working and have checked with the instruction manual that you are operating it the correct way with any squelch control turned down and the volume turned up there should be a loud hissing from the speaker indicating the radio is ready to receive as soon as it is either tuned to the specific frequency of a station by direct entry or by scanning one or more bands of frequencies.

If there is no hissing noise it is possible the audio output is faulty or the aerial is not connected or the radio is otherwise faulty.

If the hissing noise is present and powerful and still nothing is being received it is possible there is nothing to receive or a more powerful aerial is needed.
It is worth noting many scanners available in the past tended to scan bands of frequencies in the upper and lower vhf bands where the aircraft, marine and emergency services radios operated. Since those days many of those services have moved their communications into the UHF bands leaving the vhf bands relatively empty.

Turn on the radio and increase the volume if you can hear a hiss through the speakers, chance is the aerial/antenna connection is not hooked up correctly. Another way to check is try tuning to an AM station if you get a signal on AM but not FM then it is The antenna. You may have to remove the radio to get at the connection.

do you mean as soon as you press the starter or connect the battery the starter motor turns and wont stop till you disconnect the battery ? if yes then starter solinoide stuck ! replace !!

Turn the volume up to the highest level.

Can you hear a hiss or static?

NO...usually means speakers are disconnected..often loose socket at rear of radio or broken wiring


YES...Hiss means either blown speaker, faulty radio or faulty aerial.

If you have tape or CD as well , this will prove whether it is the aerial or not.

HISS with CD or tape playing means faulty radio or speakers

WORKING OK with CD or tape means faulty aerial

try takeing back out and see if the conection on the back has come off if not have a look at the conection its self

new radio