Explain the phrase "都不嫌多"
I cannot make the connection between the literal translation of "all not suspicion many" and actual translation "never too much".


The literal translation of 都 and 嫌 seems not exact, especially 嫌 doesn't mean suspicion here.

都


  3.（表示强调） even:

He didn't even look at it.
他连看都不看它一眼。

Even a child knows all this.
这种事连小孩都知道。



嫌


  动词
   （厌恶; 不满意） dislike; mind; complain of:

get oneself disliked;
讨人嫌

not want to take the trouble; think it troublesome;
嫌麻烦

Everybody disliked him because of his hot temper.
大家都嫌他脾气太急。

You don't mind us smoking here, do you?
你不嫌我们在这里抽烟吧?

She always complains of the food.
她常常嫌菜不好吃。

The article is good in content, only it's a bit wordy.
这篇文章内容不错， 只是文字略嫌罗唆。



Then 怎么爱你都不嫌多 could be literally translated as However I love you (I) won't even mind (it's) much.

Could you make the connection now?