I have a lil electrical signal problem im hoping one of u guys can shed some light on to 
I have a 32" Sony Bravia LCD telly with HDMI, Component and Audio out (phono).
I have a sony mini hifi that has 1 audio in 3.5m jack.
I have an orginal xbox 360 (non HDMI) and a Wii.
I have the 360 connected to the component phonos on the LCD and the LCD audio out connected to the hifi audio in (via a phono to mini jack convertor).
I want to connect the 360 and Wii via the same composite phonos on the LCD. This works fine for video when doubled on the component LCD.
The problem is when I double the LCD audio out with the Wii audio out going to the hifi audio in. The sound level drops and sometimes I lose on of the L/R channels. The same happens if I double the audio plugs on the component LCD too.
Can anyone help?

I have a 32" Sony Bravia LCD telly with HDMI, Component and Audio out (phono).
I have a sony mini hifi that has 1 audio in 3.5m jack.
I have an orginal xbox 360 (non HDMI) and a Wii.
I have the 360 connected to the component phonos on the LCD and the LCD audio out connected to the hifi audio in (via a phono to mini jack convertor).
I want to connect the 360 and Wii via the same composite phonos on the LCD. This works fine for video when doubled on the component LCD.
The problem is when I double the LCD audio out with the Wii audio out going to the hifi audio in. The sound level drops and sometimes I lose on of the L/R channels. The same happens if I double the audio plugs on the component LCD too.
Can anyone help?