new niggles pita help please

ok guys hope you can help here ive trawled the threads but seems to many variables

1. front near side rattle sounds like its coming from suspension but more rattles /something loose , not knocking type noise from around wheel arch area its there all the time over bumps squeaky type rattle.

2. horn dosnt work /works on alarm but not buttons on wheel , also the radio volume /channel controls are working fine ?

3, tinney click sound from drivers side rear if i engine brake in low gear or take up drive sharply in 1st or second ?

few little jobs to keep me busy lol hope no more pile up before i get these done its 03 58000 thanks just need a point in the right direction

sivy

3, is it more apparent of full lock accelerating and slowing?

i dont think it is effected by accelerating or slowing seems to be every bump sounds like something is loose

No 2 is likely to be the rotary coupling or it's connectors.
No 3 check for subframe mounts for solidity. Also check for loose hub nut, not unheard of. I'm assuming the wheel nuts are tight!