how to install the block heater for 2000 Corolla

[zhongguoren2004]

I bought a new block heater for my 2000 Corolla. I try to install it by myself, but I couldn't find where should I put it in. The material said the hole for the block heater is on the left side of engine block under connector for spark plug wire.
Could you please help me? where is the spark plug wire on 1 ZZ-FE engine?
Thanks.

 

[parkdale]

ask 1摸黑